.redux-async-demo {
  max-width: 600px;
  margin: 20px auto;
  padding: 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;

  .title {
    color: #fff;
    text-align: center;
    margin-bottom: 24px;
    font-size: 24px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    position: relative;

    &::after {
      content: "";
      display: block;
      width: 60px;
      height: 3px;
      background: #fff;
      margin: 8px auto 0;
      border-radius: 2px;
    }
  }

  .channel-list {
    list-style: none;
    padding: 0;
    margin: 0;

    &.loading {
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 200px;

      .loading-spinner {
        display: flex;
        flex-direction: column;
        align-items: center;

        .spinner {
          width: 40px;
          height: 40px;
          border: 4px solid #f3f3f3;
          border-top: 4px solid #409eff;
          border-radius: 50%;
          animation: spin 1s linear infinite;
          margin-bottom: 15px;
        }

        .loading-text {
          font-size: 16px;
          color: #f3f3f3;
        }
      }
    }

    .channel-item {
      display: flex;
      align-items: center;
      padding: 16px 20px;
      margin-bottom: 12px;
      background: rgba(255, 255, 255, 0.9);
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      transition: all 0.3s ease;

      &:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
        background: rgba(255, 255, 255, 0.95);
      }

      .channel-id {
        display: inline-block;
        min-width: 32px;
        height: 32px;
        line-height: 32px;
        text-align: center;
        background: #667eea;
        color: white;
        border-radius: 50%;
        font-weight: bold;
        margin-right: 16px;
        font-size: 14px;
      }

      .channel-title {
        color: #333;
        font-size: 18px;
        font-weight: 500;
      }
    }
  }
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
